COVID-19, mental health,and rurality: A pilot study

COVID-19 has caused enormous economic and social disruptions that may have lasting effects on employment, income, and working conditions. Critically, these disruptions often have a negative impact on mental health. While significant research has examined the relationship between COVID-19 and mental health, most of these studies focus on urban centres. This paper presents results from a pilot study conducted in two rural counties in Ontario, Canada on the experiences of residents from small and rural communities related to COVID-19. Based on 3496 survey results, this study quantifies the negative impact of COVID-19 on overall mental health and the confounding role of gender, income, and age. Results must be used to expand the dialogue around rural mental health and to ensure appropriate programs and policies are developed.     

The inclusion record of fluid evolution,crack healing and trapping from a heterogeneous system during rapid cooling of pegmatitic veins (Dronning Maud Land; Antarctica)

Granitoid (pegmatite and aplite) veins in metamorphic rocks and intrusive syenites of central Dronning Maud Land, Antarctica, are flanked by conspicuous light‐coloured alteration halos, which represent the damage zone of fracture propagation. The damage zone is characterized by a high density of sealed or healed microcracks, about 1 order of magnitude above background. Fluid inclusions along healed microcracks in quartz of both pegmatite and alteration halos are inspected by optical and scanning electron microscopy, and their composition is analysed by microthermometry and quadrupole mass spectrometry. The similar inclusion record in the granitoid vein and in the damaged host rock indicates the derivation of the fluids from the hydrous melt phase. The aqueous inclusions bear abundant daughter crystals, mainly silicates, and may represent a hydrous melt. The volatile composition is variable in the system H₂O–CO₂, with mostly subordinate amounts of N₂. Phase separation with partitioning of CO₂ into the fluid phase coexisting with the hydrous melt, and possibly immiscibility in the subsolidus range, govern fluid evolution during cooling. The variable CO₂/N₂ ratio suggests mixing with fluids from an external source in the host rock and vigorous circulation at an early stage of high transient permeability. Experiments have shown that healing of microcracks at high temperatures is a matter of hours to weeks, hence similar in time scale to the cooling of the cm‐ to dm‐thick granitoid veins. In this case, rapid cooling and concomitant crack healing in a system undergoing phase separation causes a broad compositional variability of the inclusions due to necking down, and the underpressure developing in closed compartments precludes a meaningful thermobarometric interpretation.     

2015尼泊尔地震后加德满都谷地世界文化遗产破坏特征

2015尼泊尔地震对加德满都谷地的世界文化遗产造成不可估量的损失。为了探究谷地文化遗产震害整体分布特征,对谷地世界文化遗产建筑的震害状况开展实地调查,划分了三类文化遗产震害等级标准,形成了六处世界文化遗产的震害图并对其进行统计分析,加德满都、帕坦和巴德岗三处杜巴广场震后保存基本完好的文化遗产建筑占各自总数的39.5%、53.3%、50%,斯瓦扬布纳特寺、昌谷纳拉扬寺和博达哈大佛塔主体保存基本完好,附属建筑不同程度地破坏。加德满都、帕坦和巴德岗三处杜巴广场地层的松软沉积层放大地震效应使建筑严重破坏,斯瓦扬布纳特寺、昌谷纳拉扬寺震害主要受地形特征影响。考察成果为我国同类遗产建筑的抗震防护提供参考。     

甲基三甲氧基硅烷对砂岩石刻封护性能的实验室研究

为了解砂岩石刻用甲基三甲氧基硅烷材料封护处理后的各项性能,选择四川省内风化较严重的摩崖造像区的砂岩作为实验样品,采用浸水、酸雾、盐老化、光老化、循环破坏等方法对材料的憎水性、透气性、耐老化性能进行实验测试。试验表明,砂岩样品用甲基三甲氧基硅烷封护处理后其憎水性、耐老化性都有较大的提高,透气性没有太大的改变,半涂样品经循环破坏处理后,表面出现开裂现象。通过研究表明,甲基三甲氧基硅烷材料处理砂岩后其憎水性和耐老化性都较好,但循环破坏实验提示,甲基三甲氧基硅烷材料处理石刻可能对其表面产生负作用,在石刻保护中应慎重使用。     

碑帖大家陈锡钧

陈锡钧一生致力于金石文献收藏,极为宏富,复加考订著作,更显功力,有"碑帖大王"之美称与捐赠所藏之丰功,而今却鲜为人知。论文探掘陈锡钧生平经历,考述其藏品与著作。     

接近与嫡系心智模式是旅行社增强竞争力的主要障碍

心智模决定人们的思维方式和行为习惯。章认为接近与嫡系不良心智模式是旅行社增强竞争力的主要障碍。旅行社应积极倡导学习与效益型的心智模式。     

Performance and Risks of Salt-Accumulating Renders in Relation to Their Moisture Transport Properties

Salt-accumulating renders are usually applied in several layers with different specific properties of moisture transport. An extensive experimental programme was carried out to establish a relationship between those properties of individual layers and the performance of combined systems on a salt-laden substrate. Each of the 20 renders was characterized separately in absorption and drying tests, vacuum saturation tests, dry cup tests, mercury intrusion porosimetry, and ultrasound wave velocity measurements. Each of the 12 combined render systems was applied on a brick, which was then saturated with a concentrated NaCl solution by free capillary uptake. Subsequently the assembly was closed at the bottom and subjected to an accelerated drying test (50° C and 15% relative humidity). Moisture and salt profiles over the depth were taken regularly during 1 month. The results reveal very different degrees of effectiveness and levels of risk for the substrate, which are related to the moisture transport properties.     

Identity and borders: seventeenth-century Hungarian travellers in the West and the East

The survey discusses the identity and self-image of seventeenth-century Hungarian and Transylvanian travellers as conveyed through their travel texts. The cultural borders in the mental map of the travellers coincided with the eastern and south-eastern borders of Transylvania. They placed themselves in the same position as their Western European contemporaries. Although the general tone of their diaries was one of admiration, they did not make explicit comparisons to the disadvantages of their home. There are also some cases of criticism on a civilisational basis towards the West, which shows that the travellers felt that they were on equal grounds to the West. The few cases of auto-stereotypes also show that some travellers tended to reinforce even the negative stereotypes attributed to Hungarians in order to question the Western discourse which placed them on a lower grade on a scale of civilisation. Towards their Eastern neighbours, the travellers tended to use a condescending tone: qualities such as boorishness, lack of education and barbarity were attributed to Russians, Wallachians and Moldavians. The worst reputation belonged to the Ottomans: in their case, even if – in a very few cases – tolerance and understanding came into picture, there was no possibility of acceptance. Hungarian travellers only used the discourse of their own inferiority towards Western Europeans when it was a part of their political agenda – otherwise, they included themselves in the concept of the region, imagined on the basis of erudition and Latin education – which they more and more often called Europe.     

DAMAGE AND DUCTILITY DEMAND SPECTRA ASSESSMENT OF HYSTERETIC DEGRADING SYSTEMS SUBJECT TO STOCHASTIC SEISMIC LOADS

Damage phenomena observed in structures subject to intense seismic events are the result of stiffness and strength degradation. This paper studies the damage assessment of hysteretic degrading structures described by means of the Bouc-Wen model, modified to represent the mechanical degradation induced by severe earthquakes. In order to consider randomness of seismic action, the analysis is performed by adopting a stochastic approach and the Park and Ang damage functional is also evaluated in stochastic way. A parametric analysis is carried out with the aim to analyse the effect of mechanical characteristics and measure parameters of earthquake intensity on seismic response and damage level. Damage spectra are finally obtained and they are used to develop, on the basis of the Performance Based Seismic Design, ductility demand spectra.     

Cultures of Border Control: Schengen & the Evolution of European Frontiers

This paper traces, and is the traces of, a collective project to render a neighbourhood queer. It is a project that emerges from queer social relations. Academic research and knowledge generation are approached collaboratively by working with queer-identified residents from west-central neighbourhoods in Toronto, Canada who volunteered with the Queer West ShOUT Youth Program. Within the context of two participant-facilitated discussion events, we discursively and artistically investigate queer world-making in the neighbourhood of West Queen West. Through collective mental mapping and photovoice renderings we interpret the queering of urban space as a queer utopian impulse. We critically examine the ‘concrete utopia’ of Queer West Village and question its resonance in the lives of ShOUT volunteers. Theoretically inspired by Muñoz, our ‘a/r/tographic’ mode of inquiry and critical praxis are a rendering of ‘queer futurity.’ We draw on our past to critique our lived present so as to imagine future potentialities. We do so in order to argue that it is vital that the queerness we individually and collectively strive for at the spatial scale of the neighbourhood, such as the process of place-making itself, is grounded in material experience yet remains provisional and an ideality that motivates us.